[petsc-users] Bug in ex14f.F90 when debug flags are used?

[Satish Balay]

VecGetArray() is for F77 - it relies on  out-of-bound access.

The safer call is  VecGetArrayF90()

Now that PETSc requires F90  - perhaps VecGetArray() should be deprecated [and all examples fixed to use VecGetArrayF90]..

Satish

On Fri, 5 Jun 2020, Danyang Su wrote:

> Hi All,
> 
>  
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> I have a question regarding the following example. 
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> https://www.mcs.anl.gov/petsc/petsc-current/src/ksp/ksp/tutorials/ex14f.F90.html
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> 
>  
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> When debug flags are used in the make file, the code crashed with following error.
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> At line 335 of file ex14f.F90
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> Fortran runtime error: Index '-14450582413' of dimension 1 of array 'xx' below lower bound of 1
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>  
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> FFLAGS           = -g -fcheck=all -fbacktrace -Wall
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> CPPFLAGS         = -g -fcheck=all -fbacktrace -Wall
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>  
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> Does this make sense?
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>  
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> Danyang
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>